Without trying to sound like I'm completely nuts but does it matter if the smoker does not sit level? The only convenient area I have to use the smoker has a slight grade (slight is 1" across 2').
1/2" per foot taint bad, my driveway is 1/4" per ft and even with 3 wheels it doesn't roll away. The only time I notice it is when I use a CI skillet on the OTG and the oil stays on the low side.